... of B/L).6).Standard executed: HG/T2968-1999(Technical Grade), GB8848-88(Food Grade)7).Properties:White powder; Soluble in water but ... as detergent auxiliary, paper production to bleach and electroplating; In food industry it is used as buffering agent, emulsifier, nutrition ... used for water treatment, oil drilling, etc., in the food industry as a quality improver, emulsifier, buffer, chelating agent ...